EXCLUSIVE: If you love a song from a classic Disney animated feature, it is likely that Howard Ashman was the mind behind the words. Don Hahn’s documentary Howard takes a look at the life of the Academy Award-winning lyricist and the legacy he left behind. In the exclusive clip above, we see him at work recording the memorable Beauty and the Beast song “Be Our Guest” with composer and frequent collaborator Alan Menken as well as the movie’s stars Angela Lansbury and Jerry…